__code ls(struct GearsDirectoryImpl* gearsDirectory, struct Integer* name, __code next(...)) {
    Node* dir = new Node();
    dir->key = name->value;
    struct FTree* cDirectory = new FTree();
    cDirectory = gearsDirectory->currentDirectory;
    goto cDirectory->get(dir, ls2);
}

__code ls2(struct GearsDirectoryImpl* gearsDirectory, struct Node* node, __code next(...)) {
    printf("%d\n", node->key);
    goto next(...);
}